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Cheap flights from Saint Thomas Island to Washington, D.C. from $97

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint Thomas Island to Washington, D.C. departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Saint Thomas Island to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:02 pm - 4:25 pm
STT
-
IAD
4h 23mnonstop
United Airlines Logo
8:59 am - 1:56 pm
IAD
-
STT
3h 57mnonstop
$280United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
5:25 pm - 11:18 pm
STT
-
IAD
6h 53m1 stop
United Airlines Logo
8:59 am - 1:56 pm
IAD
-
STT
3h 57mnonstop
$285United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
5:25 pm - 11:18 pm
STT
-
IAD
6h 53m1 stop
United Airlines Logo
8:45 am - 3:55 pm
IAD
-
STT
6h 10m1 stop
$289United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
5:25 pm - 11:18 pm
STT
-
IAD
6h 53m1 stop
United Airlines Logo
8:59 am - 1:56 pm
IAD
-
STT
3h 57mnonstop
$317United Airlines
Fri, Feb 6 - Sun, Feb 8
Delta Logo
3:10 pm - 8:45 pm
STT
-
IAD
6h 35m1 stop
Delta Logo
6:00 am - 3:05 pm
IAD
-
STT
8h 05m1 stop
$350Delta
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
1:50 pm - 11:12 pm
STT
-
IAD
10h 22m1 stop
American Airlines Logo
7:01 am - 3:06 pm
IAD
-
STT
7h 05m1 stop
$360American Airlines
Thu, Jan 29 - Thu, Feb 5
United Airlines Logo
5:25 pm - 11:18 pm
STT
-
IAD
6h 53m1 stop
United Airlines Logo
8:59 am - 1:56 pm
IAD
-
STT
3h 57mnonstop
$373United Airlines
Fri, Feb 6 - Sun, Feb 8
American Airlines Logo
3:46 pm - 11:12 pm
STT
-
IAD
8h 26m1 stop
American Airlines Logo
7:01 am - 3:06 pm
IAD
-
STT
7h 05m1 stop
$404American Airlines
Thu, Jan 29 - Thu, Feb 5
Delta Logo
3:10 pm - 8:45 pm
STT
-
IAD
6h 35m1 stop
Delta Logo
7:15 am - 4:20 pm
IAD
-
STT
8h 05m1 stop
$410Delta
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
5:25 pm - 11:18 pm
STT
-
IAD
6h 53m1 stop
United Airlines Logo
8:59 am - 1:56 pm
IAD
-
STT
3h 57mnonstop
$415United Airlines
Thu, Jan 29 - Thu, Feb 5

American Airlines flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Mar 11
STT4:42 pmSaint Thomas Island Cyril E King
16h 06m
1 stop
IAD8:48 amWashington, D.C. Dulles Intl
Mar 16
IAD5:00 amWashington, D.C. Dulles Intl
6h 06m
1 stop
STT11:06 amSaint Thomas Island Cyril E King
$189
Find similar
American Airlines
Jan 29
STT1:50 pmSaint Thomas Island Cyril E King
10h 22m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
Feb 5
IAD7:01 amWashington, D.C. Dulles Intl
7h 05m
1 stop
STT3:06 pmSaint Thomas Island Cyril E King
$360
Find similar
American Airlines
Feb 11
STT4:12 pmSaint Thomas Island Cyril E King
8h 00m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
Feb 16
IAD6:00 amWashington, D.C. Dulles Intl
9h 52m
1 stop
STT4:52 pmSaint Thomas Island Cyril E King
$385
Find similar

United Airlines flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Mar 11
STT2:35 pmSaint Thomas Island Cyril E King
9h 16m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
Mar 16
IAD8:59 amWashington, D.C. Dulles Intl
3h 57m
STT12:56 pmSaint Thomas Island Cyril E King
$195
Find similar
United Airlines
Feb 11
STT5:25 pmSaint Thomas Island Cyril E King
6h 53m
1 stop
IAD11:18 pmWashington, D.C. Dulles Intl
Feb 16
IAD8:59 amWashington, D.C. Dulles Intl
3h 57m
STT1:56 pmSaint Thomas Island Cyril E King
$224
Find similar
United Airlines
Jan 28
STT5:25 pmSaint Thomas Island Cyril E King
6h 53m
1 stop
IAD11:18 pmWashington, D.C. Dulles Intl
Feb 4
IAD8:59 amWashington, D.C. Dulles Intl
3h 57m
STT1:56 pmSaint Thomas Island Cyril E King
$285
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 1/28

1:02 pm-4:25 pm

Nonstop4h 23m

Washington, D.C. Dulles Intl

Wed 2/4

8:59 am-1:56 pm

Nonstop3h 57m

$280

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 1/28

5:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Wed 2/4

8:59 am-1:56 pm

Nonstop3h 57m

$285

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 1/28

5:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Wed 2/4

8:45 am-3:55 pm

1 stop6h 10m

$289

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Fri 2/6

5:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Sun 2/8

8:59 am-1:56 pm

Nonstop3h 57m

$317

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 1/28

3:10 pm-8:45 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Wed 2/4

6:00 am-3:05 pm

1 stop8h 05m

$350

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

1:50 pm-11:12 pm

1 stop10h 22m

Washington, D.C. Dulles Intl

Thu 2/5

7:01 am-3:06 pm

1 stop7h 05m

$360

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Fri 2/6

5:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Sun 2/8

8:59 am-1:56 pm

Nonstop3h 57m

$373

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

3:46 pm-11:12 pm

1 stop8h 26m

Washington, D.C. Dulles Intl

Thu 2/5

7:01 am-3:06 pm

1 stop7h 05m

$404

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Wed 1/28

3:10 pm-8:45 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Wed 2/4

7:15 am-4:20 pm

1 stop8h 05m

$410

Saint Thomas IslandWashington, D.C.

STT - IAD

STTIAD

Saint Thomas Island Cyril E King

Thu 1/29

5:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Thu 2/5

8:59 am-1:56 pm

Nonstop3h 57m

$415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $536. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Saint Thomas Island to Washington, D.C. Dulles Intl Airport for around $743.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Saint Thomas Island at noon is the least expensive time of day to depart. momondo users have found prices as low as $627 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $675 on average. Flights to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flight route?

Fly from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl for the best Saint Thomas Island Cyril E King - Washington, D.C. Dulles Intl flight prices

What cabin class options are available on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Saint Thomas Island to Washington, D.C. Dulles Intl Airport.

How have Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of December 2025, prices for Saint Thomas Island to Washington, D.C. Dulles Intl Airport flights are approximately 59% cheaper when compared to flights at the same time last year.

When to book flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Saint Thomas Island to Washington, D.C. Dulles Intl Airport (STT to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Best Price Found

$253

Fastest flight time

4h 13m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the past 72 hours is $253. The best round-trip flight deal from Saint Thomas Island to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $411.
The fastest flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport takes 4h 13m
Direct flights go from Saint Thomas Island to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl by plane?

    Saint Thomas Island Cyril E King and Washington, D.C. Dulles Intl are 1608.5 mi apart from one another. Flights usually cover this in 4h 13m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights

  • United Airlines Flights From Saint Thomas Island to Washington, D.C. Dulles Intl Airport

    United Airlines is one of the most popular airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport, operating 7 flights/week on average for this route. A good United Airlines flight deal for Saint Thomas Island to Washington, D.C. Dulles Intl Airport starts from $298 round-trip, up to an average price of $680. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from Saint Thomas Island to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Saint Thomas Island to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Saint Thomas Island to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Saint Thomas Island on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Saint Thomas Island to Washington, D.C.?

momondo helps you find the best flight between Saint Thomas Island and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Saint Thomas Island to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Saint Thomas Island are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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